Orange Memorial Park in San Francisco is the context for the new 6,400 sq. ft. recreation building which is encircled by soccer, basketball, picnic and other outdoor amenities. The recreation building is conceived as a pavilion in a park and an icon for the community. Towards that goal, the use of natural materials that are sustainable, that have a sense of quality and longevity, that are complementary to each other and to the park context, and that are attractive, was of fundamental importance both to the designers and the client. For that reason, wood - in particular Western Red Cedar – and natural basalt stone are two of the most prominent materials in the building's materials palette. Western Red Cedar wood grilles form a rain screen of longevity and beauty for the walls, while evoking the sense of lightness, transparency and horizontality.